255202621 has 8 divisors (see below), whose sum is σ = 260858880. Its totient is φ = 249555888.

The previous prime is 255202609. The next prime is 255202637. The reversal of 255202621 is 126202552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255202621 - 2⁹ = 255202109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255202021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92500 + ... + 95218.

It is an arithmetic number, because the mean of its divisors is an integer number (32607360).

Almost surely, 2^255202621 is an apocalyptic number.

It is an amenable number.

255202621 is a deficient number, since it is larger than the sum of its proper divisors (5656259).

255202621 is a wasteful number, since it uses less digits than its factorization.

255202621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 255202621 is about 15975.0624724913. The cubic root of 255202621 is about 634.3004849942.

The spelling of 255202621 in words is "two hundred fifty-five million, two hundred two thousand, six hundred twenty-one".